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Editor's Picks

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Who was Quercus grahamii named in honor of?
Roderick Cameron | Dec 17, 2024
Quercus rubra in autumn
The Tree of the Year Association in Germany selected a non-...
Website Editor | Dec 16, 2024
Image from Enarrationes
A 16th century commentary on the medicinal property of oaks...
Website Editor | Dec 16, 2024

Plant Focus

Quercus magnosquamata acorn
A  little-known species from the northern Zagros forests of Iran

Website Editor's blog

Amato Lusitano on Fagaceae

Image from Enarrationes

A 16th century commentary on the medicinal property of oaks and aconrs

Andrew Hipp in Joey Santore's Podcast

Crime Pays But Botany Doesn't lgo

Andrew Hipp talked to the legendary Joey Santore about genus Quercus.

Aljos Farjon on Ancient Oaks

Ancient Oaks and Biodiveresity page 1

Aljos Farjon FLS reports on the biodiversity of High Park, a wild section of Blenheim Park in Oxfordshire, England.

David Cranwell's Himalayan Oaks in New Zealand

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IOS member David Cranwell shared with us a bulletin about his work growing Quercus leucotrichophora in New Zealand. This was presented at the New Zealand Farm Forestry Conference held in Napier, Hawke's Bay, April 9–13, 2024. David has been growing Q. leucotrichophora, also known as Himalayan oak or banj oak, in New Zealand since the late 1990s, initially from acorns imported from India.

Saving Engelmann Oak One Acorn at a Time

IOS member Christy Powell, Horticulture Manager at San Diego Zoo Wildlife Alliance, shared an inspiring news story.

Oak Cousins in Danger

Beech tree leaf disease

Beech Leaf Disease is attacking Fagus species in North America.

Jim Conrad's Oak Notes

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The IOS recently received an inquiry from Jim Conrad about a strange phenomenon he observed on a twig of a Quercus ×dysophylla in the Eastern Sierra Madre in Mexico, where what appeared to be multiple styles emerged from a bud. It turns out they may be fungal reproductive bodies.

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A new oak-themed mural beautifies an old brick wall in downtown Woodland, California. The artwork, commissioned in part by the Woodland Tree Foundation, features a mature Quercus lobata (valley oak), under which a California scrub jay (Aphelocoma californica) caches an acorn that is already sprouting a vigorous network of roots.

Educational Videos on GCCO Website

Propagating oaks by cuttings

Maricela Rodríguez interviewed staff and owners at key oak collections in the UK. 

Poison Oak? Please Don't!

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Angela Moskow shared some disturbing accounts of oak poisonings.

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